Datasheet Analog Devices AD8479TRZ-EP

Very High Common-Mode Voltage
Precision Difference Amplifier
AD8479 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAM ±600 V common-mode voltage range
Rail-to-rail output
Fixed gain of 1
Wide power supply range of ±2.5 V to ±18 V
550 μA typical power supply current
Excellent ac specifications
90 dB minimum CMRR
310 kHz bandwidth
High accuracy dc performance
±5 ppm maximum gain nonlinearity
±10 µV/°C maximum offset voltage drift
±5 ppm/°C maximum gain drift AD8479
REF(–) 1 +IN 3 1MΩ NC 7 +VS 6 OUTPUT 5 REF(+) 1MΩ –VS 4 NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 11118-001 –IN 2 8 Figure 1. APPLICATIONS
High voltage current sensing
Battery cell voltage monitors
Power supply current monitors
Motor controls
Isolation GENERAL DESCRIPTION The AD8479 has low offset voltage, low offset voltage drift,
low gain drift, low common-mode rejection drift, and excellent …

Very High Common-Mode Voltage
Precision Difference Amplifier
AD8479-EP Enhanced Product
FEATURES FUNCTIONAL BLOCK DIAGRAM ±600 V dc common-mode voltage range
Rail-to-rail output
Fixed gain of 1
Wide power supply operating voltage range of ±2.5 V to ±18 V
550 μA typical power supply current
Excellent ac specifications
80 dB minimum CMRR
130 kHz small signal −3 dB bandwidth
High accuracy dc performance
10 ppm maximum gain nonlinearity
15 µV/°C maximum offset voltage drift
5 ppm/°C maximum gain drift AD8479-EP
REF(–) 1 +IN 3 1MΩ NC 7 +VS 6 OUTPUT 5 REF(+) 1MΩ –VS 4 NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 20677-001 –IN 2 8 Figure 1. ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Product change notification …